Operating systems

Google Apps Improved Login (GAIL) provides Google Apps administrators with two oft-requested features: the ability to customize the login page and the ability to log in as their users. GAIL is designed to run on Google's App Engine so that administrators do not need to have their own Web server. GAIL works by making use of the SAML Single Sign-On (SSO) Service for Google Apps. Premier and Education Editions of Google Apps are supported. Standard Edition is not.

CMNDBOT is a port of GOZERBOT to the Google Wave platform. It allows you to execute commands that you can program easily through the use of plugins. Web and Jabber (XMPP) access is also supported. A few GOZERBOT plugins have been ported.

Lollysite is a simple but powerful Web site creation and blogging platform for Google’s AppEngine. It is simple to set up and easy to add your own theme. It allows pages, recipes, image uploads, and file uploads.

FEEDPROVIDER is a bot for pushing pubsubhubbub feeds to Google Wave and Jabber. Combined with a feed fetching service like superfeedr.com, it can deliver your feeds to multiple platforms, including IRC through a separate standalone program.

CaroView for the Google cloud facilitates online map creation and publishing of geo-content from fusion tables and other online sources and services You can configure, author, and publish your map from the browser, with no programming required. It will render your geodata from Google fusion tables and external sources (GeoRSS, KML, or ArcGIS Server). You can select from a large number of plugins to use in your map: Twitter, Yelp, events, weather, and many more.

Vikuit is an advanced social networking engine optimized for Google App Engine. It aims to possess every feature for a social network engine while remaining easy to deploy and manage. It is built with Python and is focused on running on Google App Engine (GAE). Vikuit is intended to fill the gap between software-as-a-service platforms like Ning and on-site deployments. Its key features include articles and news, support for multiple languages, groups, Google native authentication, microbloging, following a user, profiles and profile comments, comments, photo galleries, full searching, user dashboard, and recent activity. For developers, Vikuit uses themes based on jinja templates and special modules, called Vikuitlets, that provide an easy way to extend it.